Sump Pump power usage depends on the size of the sump pump you have, a small 1/4hp Sump pump will usually use around 600 watts and require around 3.5-4 amps, while a larger 1hp sump pump will use as much as 2000 watts and 10amps.
Does a sump pump need a 20 amp breaker?
Re: Sump Pump Wiring ??? It need not have 20 amp receptacles, however. If it's a 15 amp circuit, either #12 or #14 could be used, as a lower amp circuit can always safely use wire rated for a higher amp circuit.2018-09-17
How many amps does a 1 HP sump pump draw?
3.2-amper
How many amps does a 1/2 horsepower sump pump draw?
1/2 hp is 373 watts. If the motor is like 80% efficent, then your continuous could be 373/0.8 = 466 watts. But they say the startup draw can be 1.5x-2x the continuous draw.. so you might consume up to 900+ watts. That's roughly 7.8 Amps.2011-08-26
Does sump pump need 15 or 20 amp?
Most sump pumps require a full load current of 9.8 amps. This would mean that if this is the only load other than convenience use of the other half of that duplex receptacle then you may use a 15 amp duplex receptacle.2001-02-22